Means for facilitating engine starting



J. H. HAMMOND, JR

MEANS FOR FACILITATING ENGINE STARTING Aug 2, 1938.

Filed Dec. 25, 1933 AI a IN VENTOR Patented Aug. 2, 1938 2,125,610

UNITED STATES PATENT OFFICE MEANS FOR FACILITATING ENGINE STARTING John Hays Hammond, Jr., Gloucester, Mass.

Application December 23, 1933, Serial No. 703,826

8 Claims. (Cl. 123179) This invention relates to internal combustion 12. The brush 21 is electrically connected to one engines and more particularly to means for facilterminal of the motor 2 I, which is also connected itating the starting of said engines. to a contact 29 of a snap switch 30, which may The invention preferably provides a mechabe mounted in any convenient position on the nism for automatically oscillating the throttle dashboard of the car. I The blade of this switch 5 valve or choke valve of an engine at the time the is grounded to the frame of the car at 3|. One engine is started. terminal of the battery 32 is also grounded at The invention may further provide means for 3|. The other terminal of this battery is elecautomatically returning this mechanism to a rest trically connected to the other terminal of the position in which it will not interfere with the motor 2|. normal operation of the throttle or choke when The worm wheel 23 is provided with a radial the engine is running. slot 33 (Fig. 2) through which a crank pin 34 The invention also consists in certain new and passes. This pin may be secured in any position original features of construction and combinaalong this slot by means of a nut 35. Rotatably l6 tions of parts hereinafter set forth and claimed. connected to the other end of the crank pin 34 Although the novel features which are believed is a reciprocating arm 33 which is provided at to be characteristic of this invention will be parits opposite end with a longitudinal slot 31 and ticularly pointed out in the claims appended has a turn buckle 38 intermediate of its length hereto, the invention itself, as to its objects and whereby its length may be adjusted. Slidably advantages, the mode of its operation and the mounted in the slot 31 is a pin 39 which is se- '20 manner of its organization may be better undercured to the throttle arm l5. The turn buckle stood by referring to the following description 38 thus permits the limiting position of the pin taken in connection with the accompanying 39 in the slot 31 to be adjusted. drawing forming a part thereof, in which; Accelerator lever or pedal I1 is fixed in the Fig. l is a side elevation, partly in section, of operators compartment of the automobile and 5 the invention as applied to an automobile enis arranged to control, by means of connecting gine; lever 43 and rod 44, the throttle arm 15. Helical Fig. 2 is an enlarged sectional view taken on spring 45 slides on rod 44 and is attached at one line 22 of Fig. 1; of its ends to collar 46 on this rod. At the other Fig. 3 is a side elevation of a modified form of end it presses against throttle arm 15. Arm 15 3 the invention. I v is thus held between spring 45and collar 41 also Like reference characters denote like parts in mounted on rod 44. the several figures of the drawing. In the operation of the form of the invention In the following description and in the claims, shown in Figs. 1 and 2 when it is desired to start parts will be identified by specific names for con the engine 12 the snap switch 30 is thrown to 3 venience, but they are intended to be as generic the down position, thus connecting the battery in their application to similar parts as the art 32 to the motor 2|. The motor starts rotating, will permit. I thus causing a rotation of the worm wheel 23.

In the form of the invention shown in Figs. This causes the arm 36 to be reciprocally oscill and 2 the automobile II is provided with the lated back and forth, which in turn causes a cor- '46 usual engine 12, intake manifold 13, carburetor responding oscillation of the throttle arm l5 l4, throttle l5, choke l6 and foot operated acagainst the pressure of spring 45. The starter celerator 11. (not shownlof the engine 12 is then operated An auxiliary motor such as a motor 21 is in the usual manner until the engine starts,

mounted on the side of the engine l2. To the whereupon it is released. For a brief period after 4 shaft of this motor there is attached a Worm 22 the engine starts, the motor 2| is allowed to opwhich meshes with a worm wheel 23 rotatably erate. Then the switch 30 is thrown up. If the mounted on a pin 24 (see Fig. 2) which is secured brush 21 is on the segment 25 the motor 21 will to the side of the eng e l2. Mo ted o the continue to turn as a circuit is completed from Worm wheel is a commutator made up in two the battery 32 through the motor 2|, brush 21, '50 sections 25 and 26, the section 25 being made segment 25 to ground on the frame of the autoof conducting material and the section 26 being mobile thence back to the battery 32. This will made of insulation. Engaging this commutator continue until the segment 26 moves under the is a brush 21 mounted on a block of insulation brush 21 when the circuit to the motor 2| will 28, which is secured to the side of the engine be opened, thus stopping the motor so that the 55 arm 36 is in the position shown in the figures. In this position, it will be noted that it does not interfere with the normal operation of the throttle arm l5 by means of the accelerator pedal H, as the slot 31 allows the pin 39, and therefore the throttle arm l5 unrestricted normal motion.

In this way it is possible to manipulate the throttle automatically when the engine is being started, thus greatly facilitating the starting. It is also seen that when the mechanism is thrown out of operation, it will automatically move into a position where it will not interfere with the usual throttle controls.

By changing the position of the crank pin 34 in the slot 33 and securing the same by the nut 35, the length of the stroke of the reciprocating arm 36 is varied and by adjusting the turn buckle 38 the length of this arm can be changed thus giving any desired operation of the throttle arm I5.

In the modified form of the invention shown in Fig. 3, the system is shown as controlling the choke of the carburetor instead of the throttle. In this case the mechanism is identical to that already described in Figs. 1 and 2 up to and including the pin 39 which in this case however, is secured to an arm 4| which operates the choke |6. The arm 4| may also be controlled by choke rod 42, which is used for the normal operation of the choke. This rod exerts forces on projection 48 of arm 4| by means of collar 49 and helical spring 50 in a manner similar to that described in connection with rod 44. v

In the operation of the modified form of the invention shown in Fig. 3, the switch 30 is closed when it is desired to start the engine, thus causing the arm 36 to be oscillated in a manner similar to that already described. This causes an oscillation of arm 4| and the choke I6 at the time the engine is started, thus greatly facilitating the starting. This continues until the switch 30 is opened, at which time the mechanism is returned to the position shown in Fig. 3, in a manner similar to that described in connection with Figs. 1 and 2. In this position the mechanism does not interfere with the normal operation of the choke as the pin 39 is free to move in the slot 31.

Although the operation of the mechanisms shown in the accompanying figures is controlled by a manually operated switch, this switch may be arranged to operate automatically, at the time the starting device for the motor is put into operation. The oscillating mechanism may also be connected directly to the starting motor, thus eliminating the motor 2|, if desired. In this case, however, the oscillator would cease to operate as soon as the starter is released. The arrangement shown in the drawing has the advantage of continuing the control for an appreciable time after the engine has started to run.

Although only a few of the various forms in which this invention may be embodied have been shown herein, it is to be understood that the invention is not limited to any specific construction, but might be embodied in various forms without departing from the spirit of the invention or the scope of the appended claims.

What is claimed is:

1. The combination, in a machine for facilitating the starting of internal combustion engines of a mechanism comprising a motor, an oscillatory member driven by said motor and means interconnecting said oscillatory member and the throttle of said engine for causing said throttle to be opened and closed at a predetermined rate.

2. The combination, in a machine for facilitating the starting of internal combustion engines of a mechanism comprising a motor, an oscillatory member driven by said motor and means interconnecting said oscillatory member and the choke of said engine for causing said choke to be opened and closed at a predetermined rate.

3. The combination, in a machine for facilitating the starting of internal combustion engines, of a mechanism comprising a motor, an oscillatory member driven by said motor and means operated by said member for intermittently varying the feed of fuel to said engine during the starting operation in a predetermined manner.

4. The combination, in a machine for facilitating the starting of internal combustion engines of a mechanism comprising a motor, an oscillatory member driven by said motor and means operated by said member for increasing and decreasing the amount of fuel fed to said engine at regular intervals.

5. In a device for facilitating the starting of an internal combustion engine, a fuel control lever on said engine, electrically operated means for oscillating said lever, said electrically operated means when in rest position being adapted to permit normal operation of said lever, and means to stop said electrically operated means in said rest position.

6, In combination, an internal combustion engine, a fuel supply controlling lever for said engine, an electric motor, crank means operated by said motor for oscillating said lever, said crank means, when in rest position, being adapted to permit normal operation of said lever, means for starting said motor, and means for stopping said crank means in said rest position.

7. In a device for facilitating the starting of an internal combustion engine, in combination, a

fuel throttle, an electric motor, two energizing circuits for said motor, a manually operated switch in the first of said circuits, a wheel driven by said motor, said wheel having an uninsulated commutator segment and a crank arm, a commutator brush making contact with said uninsulated segment, said brush and segment being in the second of said circuits, and a reciprocating arm connecting said crank arm and fuel throttle to oscillate said throttle when said motor is operating.

8. In a device for facilitating the starting of an internal combustion engine, in combination, a choke throttle, an electric motor, two energizing circuits for said motor, a manually operated switch in the first of said circuits, a wheel driven by said motor, said wheel having an uninsulated commutator segment and a crank arm, a commutator brush making contact with said uninsulated segment, said brush and segment being in the second of said circuits, and a reciprocating arm connecting said crank arm and choke throttle to oscillate said throttle when said motor is operating.

JOHN HAYS HAMMOND, Jr. 

